Astronomy Flashcards
ptolemy
A roman astronomer - known for the earth centered system
Copernicus
Made models with the sun in the center
Brahe, Tycho
finding positions of stars
Kepler
working on planetary motion
Galileo
(Father of modern science) Transition from renaissance to modern science
Newton
Laws of motion creator
Hubble
thought of other galaxies beyond ours
Ursa major
Greater she-bear star constellation
Ursa minor
Lesser she-bear sat constellation
orion
constellation named after a hunter
canis major
greater dog constellation
Casseopia
constellation named after a boasting queen
red giant
stars characterized by color and heat and size
white dwarf
star that is light colored, small, and a certain heat
Main-sequence star
90% of stars- fused hydrogen
supernova
a star that suddenly increases greatly in brightness because of a catastrophic explosion that ejects most of its mass.
black hole
a region of space having a gravitational field so intense that no matter or radiation can escape.
parallax
the effect whereby the position or direction of an object appears to differ when viewed from different positions.
light-year
unit used to measure distance in astronomical size
polaris
North star, Brightest star and points straight north
